The complete handbook of slow-scan TV PDF
Preview The complete handbook of slow-scan TV
@ TAB BOOKS I No. 859 iSQ....9.. 5 . ~- . . The Complete Handbook of Slow-scan TV The complete manual on setting up and operating a slow-scan TV amateur station. =-- ~ =-~ r- --~ r-~ =----== ~ -~ re=---:. -- Dave Ingram By I I The Complete HandboOk of Slow-scan TV The Complete HandboOk of Slow-scan TV By Dave Ingram FIRST EDITION FIRST PRINTING-APRIL 1977 Copyright© 1977 by TAB BOOKS Printed in the United States of America Reproduction or publication of the content in any manner, without express permission of the publisher, is prohibited. No liability is assumed with respect to the use of the information herein. Library of Congress Cataloging in Publication Data Ingram, Dave The complete handbook of slow-scan tv. Bibliography: p. Includes index. 1. Slow-scan tv. I. Title. TK9960. I53. 6Z l. 388' 5 77-3735 ISBN 0-8306-7859-X ISBN 0-8306-6859-4 pbk. Preface A new sound is being heard more and more often on the high frequency amateur bands-slow-scan television. Behind this sound lies a complete new era of visual communication which presents unlimited capabilities for the amateur radio op erator. Although the open-air days of convertible automobiles, biplanes. and breadboard rigs are slowly becoming a memory, the golden age of radio still exists in the world of SSTV. Imagine the excitement as you. possibly the only radio amateur in your area with video capability, and your friends watch pictures transmitted directly from various areas of the world. Visualize acquiring your first look at someone with whom you've talked many times. or showing your rig and special projects to another SSTV operator who is genuinely interested in your work. SSTV is all the excitement of your first QSO. most outstanding QSO, longest DX QSO, most newsworthy. and record-breaking QSO all rolled into one. Truly this is ham radio supreme! Now is an ideal time for the radio amateur to get involved with slow-scan TV. Present interest in VHF bands, coupled with adverse sunspot activity, have left the 80- through 10-meter bands wide open to worldwide communications. DX contacts are not suffering from heavy QRM and clear frequencies for SSTV can be located with little trouble. As SSTV moves into the limelight on these bands, a respect for modern pioneering technology is becoming apparent. In an attempt to provide an absolute state-of-the-art analysis. I set about writing this book while leading SSTV designers around the country perfected their particular units. Our efforts merged at publication time when this book took final form. Until this time. the book was somewhat of a dream. I have prepared information in this book following a logical sequence. The first four chapters discuss SSTV in an introductory form. Simplicity is the keynote to these chapters as the newcomer learns of SSTV systems and parameters. The latter part of the book reveals many revolutionary new ideas and circuits which reflect the latest SSTV innovations. While many of these units may appear somewhat complicated. constructional obstacles are overcome through the use of printed circuit (PC) boards of each unit. Thus in most cases. the particular designer of a unit may be contacted directly for PC boards of his unit. Exceptions to this system are noted, where certain other individuals handle PC work for designers. Creating a book of this type is not a simple matter, and I would like to express sincere gratitude to the following individuals for their support and contributions to this book: Dr. Don Miller. W9NTP, of Waldron. Indiana, Dr. Robert Suding. WOLMD. of Lakewood. Colorado. Mike Tallent. W6MXV. of San Jose, California, Bob Tschannen, W9LUO, of Lombard. Illinois. and Bob Schloeman, WA7MOV, of Phoenix, Arizona. Overseas contributors included: Professor Franco Fanti. IlLCF. Joseph Trombino, CPlBCC. Barry Sharpe, VK5BS. and Franta Smola. OKlOO. Many of the off-the-monitor photos contained in Chapters 1 through 5 were shot by Beverly Taylor. a superb local photographer. My special thanks to this busy person. Thanks also to the following SSTV manufacturers for permission to use information from their manuals: Robot Research Inc. of San Diego, California. Venus Scientific Inc. of Farmingdale. New York. Sumner Electronics and En gineering of Hendersonville, Tennessee. and Linear Systems Inc. of Watsonville. California. Finally. my greatest appreciation goes to Sandy. WB40EE, who was such an outstanding inspiration to me to write and complete this book. Dave Ingram, K4TWJ Birmingham. Alabama Contents 1 Introduction To SSTV 9 SSTV Around the World-Summary 2 Understanding SSTV Gear 30 SSTV Monitors-Home Brewing SSTV Monitors-Flying Spot Scanners-SSTV Camera-Sampling Cameras-Direct Scan Conversion- Digital Fast- to Slow-Scan Conversion Digital Slow-to Fast-Scan Conversion 3 Setting Up the SSTV Station 48 Monitors-Cam eras-Tape Re co rde rs-Taping Procedures-The SSTV Studio 4 Operating Procedures 65 Producing Programs-SSTV DX-Power Requirements- Live Transmissions-Framing SSTV Pictures- Operating SSTV Without a Monitor-SSTV Picture Analysis 5 SSTV Monitor Circuits 81 W9LUO Mark II Monitor-RF Feedback 6 Digital Scan Converters 106 Elementary Principles of Digital TV-WOLMD Digital Scan Converter- MXV-200 Scanverter- D-A Converter-MXW-22 Parts List-W9NTP Slow-Scan Color Converter 7 Roundup of Existing Gear 190 Buying Considerations-Robot 70 SSTV Monitor-Robot 80A SSTV Camera-Robot 60 and 61 Viewfinders-Robot 300 SSTV Scan Converter-Robot 400 Converter-Venus SS-2 Monitor-Venus C1 Camera-SEEC HCV-2A Monitor- SEEC HCV-1 B Camera- SE EC HCV-3KB SSTV Keyboard-- SBE SB-1 MTV SSTV Monitor-SSE SB-1 CTV SSTV Camera 8 SSTV Satellite Communications 270 Weather Satellite Pictures using an SSTV Monitor-Weather Satellite Receiving Station Glossary 299 Index 302 Foldout Section 193
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